The answer is A. a light wave
C and D both need water as a medium and sound needs air to vibrate in order to travel. light, on the other hand, does not need a medium
Answer:
Does your bio textbook show you?
Bacteria have different phage resistance mechanisms, such as spontaneous mutations, the CRISPR-Cas system.
Spontaneous mutations are the main mechanisms leading to phage resistance by altering the structure of bacterial wall components that act as phage receptors. These include lipopolysaccharides (LPS), outer membrane proteins, cell wall teichoic acids, capsules, and other bacterial components.
Answer:
anabaena
Explanation:
hope it heps im sorry im late :<
